Exhibit 5.3
CONSENT OF MCCARTHY TÉTRAULT LLP
We hereby consent to the reference to our firm in the prospectus included in this Registration Statement on Form F-10, to be filed with the United States Securities and Exchange Commission, under the caption “Certain Income Tax Considerations — Certain Canadian Federal Income Tax Considerations.”
/s/ MCCARTHY TÉTRAULT LLP
McCarthy Tétrault LLP
November 2, 2005
Toronto, Ontario
Toronto, Ontario